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Reading is not a waste of time . According to me reading is very important . It improves our imagination & way of thinking .. Reading non -fiction helps us to know about the lifes of other . Reading helps us to know how life can be . I my-self read books . I don't think reading books at night is a waste of time ……….

nice one
pallavi sharma

Re: funny full forms by PALLAVISHARMAPALLAVISHARMA, 31 Dec 2010 07:24

You may certainly have names of districts. So, a project on Nalanda distt could be etc


Names of wiki sites by MAITREYAMAITREYA, 23 Dec 2010 05:50

sir , can we name our site according to the district that we have chosen or with some other name
what do you think? what should we do?

Re: Democracy in action by deepali   GOYALdeepali GOYAL, 22 Dec 2010 15:32

No, Aayush. One student per SMC only…otherwise there will be lots of confusion.


Re: Democracy in action by MAITREYAMAITREYA, 09 Dec 2010 16:46

sir i want to ask that can a person be in more than 1 spm??

Democracy in action by aaayushaaayush, 07 Dec 2010 10:28

We shall be discussing our project at this forum. All are welcome to give their inputs and share their ideas.


Democacy in Action!! by MAITREYAMAITREYA, 19 Nov 2010 05:10

can anyone tell me how to upload videos on our website

from your knowledge which date tickets of cwg we should take for event sir. i am having a lot of confussion

Popular music belongs to any of a number of musical genres "having wide appeal" [1] and is typically distributed to large audiences through the music industry. It stands in contrast to both art music [2][3][4] and traditional music, which are typically disseminated academically or orally to smaller, local audiences.[2][3][4] Although popular music sometimes is known as "pop music", the two terms are not interchangeable. Popular music is a generic term for music of all ages that appeals to popular tastes";[5] on the other hand, pop music usually refers to a specific musical genre.
There are many pop singers- Pop music comes from the Indian Film Industry, and until the 1990s, few singers like Remo Fernandez, Usha Uthup, Asha Bhosle, Sharon Prabhakar and Peenaz Masani outside it were popular. Since then, pop singers in the latter group have included Baba Sehgal, Alisha Chinai, Shantanu Mukherjee aka Shaan, Palash Sen, K.K, Sagarika, Colonial Cousins (Hariharan, Leslie Lewis), Lucky Ali, and Sonu Nigam, and music composers like Jawahar Wattal, who made top selling albums with, Daler Mehndi, Shubha Mudgal, Baba Sehgal, Shweta Shetty and Hans Raj Hans.

There are many kinds of musical instruments.They are as per following:
Trumpet-The trumpet is the musical instrument with the highest register in the brass family.Trumpets are among the oldest musical instruments,[1] dating back to at least 1500 BCE. They are constructed of brass tubing bent twice into an oblong shape, and are played by blowing air through closed lips, producing a "buzzing" sound which starts a standing wave vibration in the air column inside the trumpet.
There are several types of trumpet; the most common is a transposing instrument pitched in B♭. The tube length of the most common B-trumpet is about 134 cm. The predecessors to trumpets did not have valves, but modern trumpets have either three piston valves or three rotary valves. Each valve increases the length of tubing when engaged, thereby lowering the pitch.
The trumpet is used in many forms of music, including classical music and jazz.
A musician who plays the trumpet is called a trumpet player or trumpeter.

Drums-A drum kit (also drum set, kit,[1] or trap set) is a collection of drums, cymbals and often other percussion instruments, such as cowbells, wood blocks, triangles, chimes, or tambourines, arranged for convenient playing by a single person (drummer).
The individual instruments of a drum set are hit by a variety of implements held in the hand, including sticks, brushes, and mallets. Two notable exceptions include the bass drum, played by a foot-operated pedal, created by Jonathan McEwen, and the hi-hat cymbals, which may be struck together using a foot pedal in addition to being played with sticks or brushes. Although other instruments can be played using a pedal, the feet are usually occupied by the bass drum and hi hat, and as a result the drummer plays in a seated position. Percussion notation is often used by drummers to signify which drum set components are to be played. A full size drum set without any additional percussion instruments has a bass drum, floor tom, snare drum, tom-toms, and a variety of cymbals including hi-hat cymbals, ride cymbal and a crash cymbal.
Various music genres dictate the stylistically appropriate use of the drum kit's set-up. For example, in most forms of rock music, the bass drum, hi-hat and snare drum are the primary instruments used to create a drum beat, whereas in jazz, ride and snare patterns tend to be more prevalent and the hi-hat is played by the foot. In the 2000s, an increasing number of drummers have begun to use electronic drum pads which trigger synthesized or sampled drum sounds.

Violin-The violin is a string instrument, usually with four strings tuned in perfect fifths.These strings are serially named ;G,D,A and E. It is the smallest, highest-pitched, and most famous member of the violin family of string instruments, which includes the viola and cello.The cords in a violin are played from A to the cord G.
The violin is sometimes informally called a fiddle, regardless of the type of music played on it. The word violin comes from the Middle Latin word vitula, meaning stringed instrument;[1] this word is also believed to be the source of the Germanic "fiddle".[2] The violin, while it has ancient origins, acquired most of its modern characteristics in 16th-century Italy, with some further modifications occurring in the 18th century. Violinists and collectors particularly prize the instruments made by the Gasparo da Salò, Giovanni Paolo Maggini, Stradivari, Guarneri and Amati families from the 16th to the 18th century in Brescia and Cremona and by Jacob Stainer in Austria. Great numbers of instruments have come from the hands of "lesser" makers, as well as still greater numbers of mass-produced commercial "trade violins" coming from cottage industries in places such as Saxony, Bohemia, and Mirecourt. Many of these trade instruments were formerly sold by Sears, Roebuck and Co. and other mass merchandisers.
A person who makes or repairs violins is called a luthier, or simply a violin maker. The parts of a violin are usually made from different types of wood (although electric violins may not be made of wood at all, since their sound may not be dependent on specific acoustic characteristics of the instrument's construction), and it is usually strung with gut, nylon or other synthetic, or steel strings.
Someone who plays the violin is called a violinist or a fiddler. The violinist produces sound by drawing a bow across one or more strings (which may be stopped by the fingers of the other hand to produce a full range of pitches), by plucking the strings (with either hand), or by a variety of other techniques. The violin is played by musicians in a wide variety of musical genres, including Baroque music, classical, jazz, folk music, pop-punk and rock and roll. The violin has come to be played in many non-western music cultures all over the world.

Guitar-The guitar is a plucked string instrument, usually played with fingers or a pick. The guitar consists of a body with a rigid neck to which the strings, generally six in number but sometimes more, are attached. Guitars are traditionally constructed of various woods and strung with animal gut or, more recently, with either nylon or steel strings. Some modern guitars are made of polycarbonate materials. Guitars are made and repaired by luthiers. There are two primary families of guitars: acoustic and electric.
Acoustic guitars (and similar instruments) with hollow bodies, have been in use for over a thousand years. There are three main types of modern acoustic guitar: the classical guitar (nylon-string guitar), the steel-string acoustic guitar, and the archtop guitar. The tone of an acoustic guitar is produced by the vibration of the strings, which is amplified by the body of the guitar, which acts as a resonating chamber. The classical guitar is often played as a solo instrument using a comprehensive fingerpicking technique.
Electric guitars, introduced in the 1930s, rely on an amplifier that can electronically manipulate tone. Early amplified guitars employed a hollow body, but a solid body was found more suitable. Electric guitars have had a continuing profound influence on popular culture. Guitars are recognized as a primary instrument in genres such as blues, bluegrass, country, flamenco, jazz, jota, mariachi, reggae, rock, soul, and many forms of pop.


Music-Music is an art form whose medium is sound. Common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics, and the sonic qualities of timbre and texture. The word derives from Greek μουσική (mousike), "(art) of the Muses."[1]
The creation, performance, significance, and even the definition of music vary according to culture and social context. Music ranges from strictly organized compositions (and their recreation in performance), through improvisational music to aleatoric forms. Music can be divided into genres and subgenres, although the dividing lines and relationships between music genres are often subtle, sometimes open to individual interpretation, and occasionally controversial. Within "the arts," music may be classified as a performing art, a fine art, and auditory art.
To many people in many cultures music is an important part of their way of life. Greek philosophers and ancient Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound."[2] Musicologist Jean-Jacques Nattiez summarizes the relativist, post-modern viewpoint: "The border between music and noise is always culturally defined—which implies that, even within a single society, this border does not always pass through the same place; in short, there is rarely a consensus … By all accounts there is no single and intercultural universal concept defining what music might be."

UNIT-2 MUSIC by Divyansh Mehta VII-CDivyansh Mehta VII-C, 28 Sep 2010 12:45

sir i m nikita jain of class ix-b
good afternoon,
sir our project on world cup fifa 2010, what can we do on that?

i 've a doubt in this q.
explain why is it difficult to hold a hose , which ejects a large amount of water at a high velocity ??

Here are a some questions for you guys to revise for your papers. I request you all to solve them without seeing your books.

Q1. Apu's mother was worried about his:

(a) Marriage
(b) Job
(c) Scholarship
(d) Nothing

Q2. Who was Akhil Babu?

(a) Apu's friend
(b) Debu's friend
(c) Principal of Ripon College
(d) Debu's incle

Q3. Apu was able to find Akhil Babu's house by :

(a) Someone told him
(b) By the address given by his friend and with the help of the street map of Calcutta
(c) He knew itby himself
(d) None of these

Q4. Apu got a job for Rs.:

(a) 100
(b) 20
(c) 15
(d) 50

Q5. Where is Naples situated?

(a) India
(b) China
(c) Italy
(d) Europe

Q6. Who is know as "AAPA" ?

(a) Cargo Boat
(b) Apu
(c) Syed Nazima Amir Ahmed
(b) Sania Mirza

Q7. Full for of EXNORA is:

(a) EXpert NOvel RAdiation
(b) EXcellent NOvel RAdical
(c) EXcellent NOward RAtio
(d) None of these

Q8. The rag pickers get a salary of Rs. :

(a) 900
(b) 1000
(c) 50
(d) 650

Q9. Austin is trying to :

(a) Pollute the surroundings
(b) Reduce garbage and increase reuse and recycling within a generation
(c) Make a bomb
(d) None of these

Q10. Who is Sania Mirza's inspiration?

(a) Steffi Graf
(b) Glamour
(c) Her Parents
(d) She herself

Q11. What is Sania's future goals?

(a) Get a nice ob
(b) Be in top 20
(c) Getting married
(d) Play another sport

Q12. Michael Jordan is known as :

(a) Basketball Star
(b) Golf Star
(c) Big Money
(d) None of these

Q13. Michael Jordan is associated with ___ company

(a) Hero Honda
(b) Addidas
(c) Yonex
(d) Nike

Q14. Who was Gajala?

(a) Rouge Elephant
(b) Poacher
(c) Villager
(d) None

Q15. Who shot the elephant?

(a) Gajala
(b) Villagers
(c) Poachers
(d) He himself died

Q16. The unicorn shuddered because :

(a) He felt happy
(b) He was surprised to see the boy
(c) He went mad
(d) He was angry to see the boy

Q17. What did the boy keep with him?

(a) A book
(b) The strand of hair from the unicorn's mane
(c) A leaf
(d) Unicorn's Horn

Q18.Meaning of Garland is :

(a) A chain of flowers
(b) A type of garden
(c) A land of flowers
(d) None

Q19. Which memory brings back the light? (POEM: The light of Other Days)

(a) Happy
(b) Mischievous
(c) Sad
(d) Angry

Q20. The cheerful hearts have now: (POEM: The light of Other Days)

(a) Joined
(b) broken
(c) Gone
(d) None of these



1. Sate Newton's law of motion. Derive it.

2. Define
a) Gravitaty and an expression for acceleration due to gravity
b) Pressure
c) Freefall

3. If the earth attracts an apple does the apple also attract the earth? If yes, why does the earth not move towards the apple?

4. Why does a mug full of water feel lighter inside water?

5. A perpendicular force of 50N acting on a surface generate a pressur of 250pa. lculat tarea of cross section of surfac on which pressure is acting.

6. Why and when does acceleration due t graity ating on a body change.

7. A body has 40kg mass. Calculate it's wt. when it is taken to a planet whose mass is 4 times the earth and radious half then that of the earth.

8. How does the wt. of a body gets affected when the is taken to poles from equator?

9. Wy does the moon not actujally fall on the surface of the earth?

10. State the difference between mass and weight.

11. A bar of gold has mass of 100g ad weight is9.8 N at some place when it is taken to some place at equator mass remains 100g but wt. is <0.98. Explain.

12. If the force of gravity vnishes why would we be flying in space?

13. A bag of sugar weighs W at a certain pace at equator. If this bag is taken to Antertica will th wt. remain the same or more or less. Why?

14. Give reasons:
a) Sleepers are provided under railwayn tracks
b) It is difficult to dross a rsert on a horce back.
c) The bull of a rifle is very broad but tip of bullet is pointed.
d) Dams are made wide at base
e) Cuttin instruments are often sharpened
f) Board pins are broad at the end and ointed on the other.
g) Skier's sink in fresh snow.
h) Sledges used by eskimos have no wheels.

15. Calaulate the pressure when force of 1000N acts on 2m2 area.

16. Calculate the force if it produces a pressure of 50000pa. over 0.125m2.

Re: Practice Papers by anandita dalalanandita dalal, 13 Sep 2010 15:21

Hi !!!!! It's Anandita of ix-c I'll be upoading various papers and will handle any queries regarding Physics.


Practice Papers by anandita dalalanandita dalal, 13 Sep 2010 14:54

Hi !!!!! Sir I'v already done that for confermation you can check that out.


Re: Examples Of Inertia by anandita dalalanandita dalal, 13 Sep 2010 14:41
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